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		<table border="1">
			<tr>
				<th>Mouse Action</th>
				<th>Keyboard Shortcut</th>
				<th>Result</th>
			</tr>
			<tr>
				<td>Click on an empty location</td>
				<td>Select empty location with cursor keys and press the <b>Enter</b>
					key</td>
				<td>Shows the constructor menu</td>
			</tr>
			<tr>
				<td>Click on an occupied location</td>
				<td>Select occupied location with cursor keys and press the <b>Enter</b>
					key</td>
				<td>Shows the method menu</td>
			</tr>
			<tr>
				<td>Select the <b>Location -&gt; Delete</b> menu item</td>
				<td>Press the <b>Delete</b> key</td>
				<td>Removes the occupant in the currently selected location from the
					grid</td>
			</tr>
			<tr>
				<td>Click on the <b>Step</b> button</td>
				<td></td>
				<td>Calls <tt>act</tt> on each actor</td>
			</tr>
			<tr>
				<td>Click on the <b>Run</b> button</td>
				<td></td>
				<td>Starts run mode. In run mode, the action of the Step button is carried out
					repeatedly</td>
			</tr>
			<tr>
				<td>Click on the <b>Stop</b> button</td>
				<td></td>
				<td>Stops run mode</td>
			</tr>
			<tr>
				<td>Adjust the S<b>low/Fast</b> slider</td>
				<td></td>
				<td>Changes speed of run mode</td>
			</tr>
			<tr>
				<td>Select the <b>Location -&gt; Zoom in/Zoom out</b> menu item</td>
				<td>Press the <b>Ctrl+PgUp</b> / <b>Ctrl+PgDn</b> keys</td>
				<td>Zooms grid display in or out</td>
			</tr>
			<tr>
				<td>Adjust the scroll bars next to grid</td>
				<td>Move the location with the cursor keys</td>
				<td>Scrolls to other parts of the grid (if the grid is too large to fit inside
					the window)</td>
			</tr>
			<tr>
				<td>Select the <b>World -&gt; Set grid</b> menu item</td>
				<td></td>
				<td>Changes between bounded and unbounded grids.</td>
			</tr>
			<tr>
				<td>Select the <b>World -&gt; Quit</b> menu item</td>
				<td>Press the <b>Ctrl+Q</b> keys</td>
				<td>Quits GridWorld</td>
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